ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.6 > S31.64 > S31.646 S31.646 Puncture wound of abdominal wall with foreign body, right flank with penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.646A..., initial encounterS31.646D..., subsequent encounterS31.646S..., sequela